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Quick Drills: Fire - Forcible Entry Cylindrical

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FORCIBLE ENTRY LOCKS July 2009 Firefighter Daily Quick Drills - Easy Access to Training Topics References: rd Delmar Handbook 3 Edition, pages 604-608 nd J&B Fundamentals 2 Edition, pages 310-315 th IFSTA Essentials 5 Edition, pages 426-427 NFPA 1001, 2008 JPR 5.3.4 FIREFIGHTER TRAINING Understanding Cylindrical Locks Recognition The cylindrical lock (also known as the Bored or Key in the Knob Lock) is the most common lock found in residential occupancies. The latch bolt on the cylindrical lock, has a throw of approximately ½ inch, making this an easy lock to force. Conventional Forcible Entry The easiest method for using conventional forcible entry on a cylindrical lock is to force the door away from the jamb, pulling the latch bolt away and free from the strike plate. Be aware that this may prove to be difficult if the door is equipped with a properly installed deadbolt lock. Through-the-Lock Forcible Entry There are several methods for attacking the locking mechanism: 1. Unscrew or Wrench the locking Cylinder – Using locking-type pliers, lock the pliers onto the cylinder and turn counterclockwise. After the cylinder has been removed, insert the appropriate key tool to unlatch the locking mechanism. 2. Utilize the K-tool – Force the blades of the K-tool over the cylinder and decorative ring. Tap the K-tool into place with a Halligan or flat head axe. Place the adze of the Halligan tool into the K-tool’s loop and firmly pull the cylinder. Once the cylinder has been removed, insert the appropriate key tool to unlatch the locking mechanism. Research and Program Development www.ncdoi.com/OSFM/RPD/rpd_home.asp